I think this ended up being a unique concept with some cute ideas inside! I think you had a pretty clear vision that you communicated through the game.
I did think the controls were a bit awkward, and it caused me some trouble navigating the levels. I thought the idea for the enemies was cute as well, but without the reference guide on your page, I would have been a bit lost. I think when you have more time to polish this up, it would help to have level 1 be the "tutorial" level, where it kind of introduces the enemies and mechanics. The music was cute, and I applaud you for even getting that done in the short time frame the jam gave you, but I'd recommend also expanding on that and making the melody longer. It loops pretty quickly, which is fine for a short playthrough, but it does become pretty noticeable pretty quickly.
Overall, impressive work for a short time frame and for learning as you go! Keep working, and I'm sure you'll see the improvement come quickly!